code: def test_empty_input_gives_all_zero_counts(self):
      # Bins will be:
      #   (-inf, 1), [1, 2), [2, 3), [3, 4), [4, inf)
      value_range = [0.0, 5.0]
      values = []
      expected_bin_counts = [0, 0, 0, 0, 0]
      hist = histogram_ops.histogram_fixed_width(
          values, value_range, nbins=5
      )
      self.assertEqual(dtypes.int32, hist.dtype)
      self.assertAllClose(expected_bin_counts, self.evaluate(hist))
  
imports: from absl.testing import parameterized
  import numpy
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import test_util
  from tensorflow.python.framework import constant_op
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import histogram_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 4 for calling the HistogramFixedWidthTest obj's underlying member method code with example usage: obj.test_empty_input_gives_all_zero_counts() without return types